I haven’t restarted a node (service) unless there are changes made to config, and for restarting the server its incredibly rare. In fact since Production has been up I think ive restrted the servers twice (both for DR occurences) in a Year.
There is very little need to reboot the servers and unless you need to keep changing config I wouldn’t worry about restarting nodes. From: Vsevolod Filaretov [mailto:vsfilare...@gmail.com] Sent: 17 July 2018 13:23 To: user@cassandra.apache.org Subject: Re: Cassandra recommended server uptime? @rahul.xavier.si...@gmail.com<mailto:rahul.xavier.si...@gmail.com>, @simon.fontana.oscars...@ericsson.com<mailto:simon.fontana.oscars...@ericsson.com>, Thank you for answers. I've got a really heavy data model, but no GC problems. Moreover, gclog shows very efficient GC process and hardly any GC pauses. So, the question remains open: how general is the practice of semi-periodical C* node restarts? Best regards, Vsevolod. вт, 17 июл. 2018 г., 14:39 Rahul Singh <rahul.xavier.si...@gmail.com<mailto:rahul.xavier.si...@gmail.com>>: It’s likely that if you have server stability issues its because of data model or compaction strategy configurations which lead to out of memory issues or massive GC pauses. Rebooting wouldn’t solve those issues. -- Rahul Singh rahul.si...@anant.us<mailto:rahul.si...@anant.us> Anant Corporation On Jul 17, 2018, 7:28 AM -0400, Simon Fontana Oscarsson <simon.fontana.oscars...@ericsson.com<mailto:simon.fontana.oscars...@ericsson.com>>, wrote: Not anything that I'm aware of. Cassandra can run at months/years without rebooting. It is better to monitor your nodes and if you find anything abnormal a restart can help. -- SIMON FONTANA OSCARSSON Software Developer Ericsson Ölandsgatan 1 37133 Karlskrona, Sweden simon.fontana.oscars...@ericsson.com<mailto:simon.fontana.oscars...@ericsson.com> www.ericsson.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ericsson.com&d=DwMFaQ&c=sA0VaJZJFLZREu2pbPeqjXHJ-Wd9NNzgHW3gpUOLSSk&r=CNKccIKIKCVbYTu1VxR8dIOP6NLpf4fYjidpNm-diQ8&m=5IKbSo_BkF_LvooY9HIX0b6uv77mFR6aP7_nXX4DVOY&s=nWurjUCnKFMsXq3lT9iCgPO92NSnnzbxkajtSjvycys&e=> On tis, 2018-07-17 at 12:09 +0300, Vsevolod Filaretov wrote: Good time of day everyone; Does Cassandra have a "recommended uptime"? I.e., does regular Cassandra node reboots help anything? Are periodical node reboots recommended for general system stability? Best regards, Vsevolod. ________________________________________________________________________ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy it. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. Tradeweb reserves the right to monitor all e-mail communications through its networks. If you do not wish to receive marketing emails about our products / services, please let us know by contacting us, either by email at contac...@tradeweb.com or by writing to us at the registered office of Tradeweb in the UK, which is: Tradeweb Europe Limited (company number 3912826), 1 Fore Street Avenue London EC2Y 9DT. To see our privacy policy, visit our website @ www.tradeweb.com.
